Core-tip-removing machine



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, June 28, 1927.

' 1,633,593 E. LARBALESTER CORE TIP REMOVING MACHINE Filed Nov. 5. 1925 3 Shoots-Shoot 2 v 1,6 June, 1927' E. LARBALESTER 33'593 CORE TIP REMOVING MACHINE Filed Nov. 5. 1925 3 Sheets-Sheet mum,

MHHHW Patented June 28, 1923. e v Q UNITED STATES PATENT; -OF,FICE.'- I

ERNEST LARBALESTLR, or FORT WILLIAM, oN rARIo, CANADA, ASSIGNOR T FORT WILLIAM IEAPER 00., LIMITED, or FORT WILLIAM, ONTARIO, CANADA.

CORE-TIP-REMOVING MACHINE.

r Application filed November 5, 1925. Serial No. 67,071.

This invention relates to certain new and useful improvements in a core-tip removing machine, and has for its primary object the provision of a simple construction and operation which will be highly efficient in the removing of core tips from cores used in paper mills and allied industries.

This invention has for another object the provision of a machine of the character stated which is composed'of the minimum number of parts and may be readily operated to. perform the operation on the cores, namely the removing of the core tips, thereby making it unnecessary to do this work by hand as has heretofore been the practice.

. The invention has for a further object, the provision of suitable power mechanism for actuating the removing device.

With the foregoing and other objects in view, as will appear as the description proceeds, theinvention consists of the novel construction, combination, and arrangement of co-operating elements as hereinafter more specifically set forth, claimed, and shown in the accompanying drawings forming a part of the present application and in which Fig. 1 is afront elevation of the machine showing the'removingdevice at the out end of its stroke;

Fig. 2 is a plan View of the machine showing the removing device atthe outlend of its stroke;

Fig. 3 is a vertical transverse section through the machine, substantially on the plane of line 3-3 of Fig. 2, looking in the direction indicated by the arrows and showing a core in position in the removing device, with the removing device atthe in end of its stroke and just prior to removing the core tip;

Fig. 4 is a detail vertical fragmentary section substantially on the plane of line 4-4 of Fig. 2, looking in the direction indicated by the arrows with the removing device in the open p'osition;"and Fig. isa sec-' tional detail of the core clamp.

Referring more in detail to the drawings, in which similar reference characters designate corresponding parts thoughout the several views, it will be noted that the machine includes:

A supporting frame structure 10 on which are attached an actuating mechanism or cyl'- inder 11 by means of a bracket 12, a clamping device 13 and 18 by means of a bracket 14, and a gaging ar 15 by means of brackets 16 and a supporting bar 17.

The clamping device shown in detail in F ig. 5 serves to hold the cores rigidly in line and c'onsistsessentially of a bottom section 13, top section 18, and an eccentric handle 19. The bottom section 13 includes a bracket 14, eccentric handle 19, a supporting device for the handle, a spring pin 21, and a spring 22. The top section 18 is hinged to the bottom section 13 a hingepin 23 and is guided'in the supporting device 20 by means of a lug 24 which is an integral part of the top section 18. The eccentric handle 19 is pivoted on the supporting device 20 and the 1 spring 22 is arranged to hold the supporting lug 24 pressed up towards the eccentric handle no matter in which position the handle 19 is allowed to remain. An antifriction roller 25 is journaled on the eccentric handle 19 by a pin and acts as a revolving wearing piece between the handle 19 and the lug 24. In operatiomthe handle 19 is manipulatedso as to force the roller 25 against the lug 24, and thus force the top section 18 downwards, thereby clamping between the two sections the core which is adapted to be received between them.

The removing device, as shown more particularly in Figs. 3 and 4, consists of an inner-section 26', an outer section 27, restraining rings 28, removing pins 29, springs 30, and an operating handle 31. The restraining rings 28 are secured to the outer section 27 and move as an integral part of it pre- V-enting'the' outer section27 from moving endwise relatively to the inner section 26. The restraining rings 28 have holes formed therein of substantially the same diameter as the core tips, or only slightly greater in diameter, whereby the rings center and steady the cor-e tips. The outer section 27 is moved laterally by the handle 31 over the inner section 26 which is kept stationary in a lateral direction by studs 32. As the handle 31 is moved downwards in the direction of the the clamping device and firmly The removing device is connected to the actuating mechanism by a flange 34 secured to it by a nut 35 or some other equally efficient method.

The cylinder 11 is made air tight or fluid tight by means of the stuffing boxes 36 and 37. The actuating mechanism consists of a piston 38, a piston rod 39, pipes 10 and 11, a valve d2, an inlet pipe 43, an exhaust pipe 14, and a valve 45. The piston 38 is secured to the piston rod 39 by means of a nut 56 or other mechanical contrivance and actuated by air or other cylinder 11 through either the pipe 10 or 1-1 as desired. The admission of air into the pipes 10 and 11 is controlled by the tourway valve 1-22 or some other equally efiicient mechanism, from the feed pipe 13 and exhausted by way of the pipe 1 1. The mechanism i5 is a valve or other choking device so set that a back pressure is maintained in the exhausting cylinder by which an air cushion is maintained in the cylinder to pre-' vent the piston 38 from striking the cylinder heads 5 1 and 55 too severely.

A tail strap 46 and a pin 47 are two devices to prevent the whole actuating mechanism from moving laterally while operating the handle 31. The piston 38 is so constructed that the packing pieces 53 make it completely fluid tight in the cylinder.

The gaging device gages the proper position of the core so that the removing pins 29 can assume proper position behind the core tip 52 as shown in Fig. 3, and is composed of a gage bar 15, brackets 16, lever arm 48, fulcrumed on the bracket, a guide bracket 49, a supporting bar 17, and a spring 50. One end of the lever arm is secured to the bar 15 by a pin and slot connection. As shown in Fig. 1 the gage bar 15 is held in the up position by the flange 34; which engages and rocks the arnr a8 and moves the gage bar against the tension of the spring 50. It is when the gage bar is in this up position that the core 51 is inserted in secured by the eccentric handle 19, with the core tip 52 resting against the gage bar 15 as shown in Fig. 1. As the removing device is actuated forward to assume the position shown in Fig. 3 the tension in the spring 50 is allowed to come into play and pull the bar 15 clownwards, thus preventing the removing device fouling the bar 15 as it moves forward. Fig. 3 shows the bar 15 in its down position. A guide bracket 19 acts as a guide for the arm 48 in all its reciprocating motions.

v It is believed that the complete construction and operation of the machine may now be understood from the foregoing paragraphs taken in conjunction with the accompanying drawings, without further detailed description. The construction and operation 01"" the machine .as designed assures quick fluids admitted into and complete removal of core tips and at a considerable saving of time, energy, and expense over the slow and expensive practice of removing the core tips 52 by hand as heretofore fol-lowed. a

While the preferred embodiment of the invention has been disclosed it is to be an derstood that minor changes in the details of construction, combination, arrangement of co-op-erating elements, and actuating fluids or materials may be resorted to within the scope of what is claimed, without de-- parting from the spirit of the invention.

What I claim is:

1. In a core-tip removing machine, a clamp adapted to frictionally engage and hold the core, a removing member comprising a head having an opening therein of approximately the diameter of a core tip, tip-engaging means movable axially of the core to engage behind the rim of the core tip, means for actuating said tip engaging means to and from the core, and means for axially moving the core and core-tip removing means relative to one another.

2. In a core-tip removing machine, a

clamp adapted to frictionally engage and hold the core, a removing member comprising a head. having an opening therein or approximately. the diameter of a core tip, tip-engaging means comprising pins slidable axially of the core to engage behind the rim of the core tip, means for actuating said tip-engaging means to and from the core, means limiting the inward movement of the said pins, and means for axially moving the core and core-tip removing means relative to one another.

3. In a core-tip removing machine, a clamp adapted to hold the core, a removing member adapted to center the core and comprising a head, pins slidable radially on the head externally of the core and limitedin their inward movement, and means for axially moving the core and'core-tip removing means relative to one. another.

4. In a core-tip removing machine, a clamp adapted to hold the core, a removing member through which the core tip may pass including a head, pins slidable radially on the head externally of the core, means on the head for moving the pins into engagement behind the rim of the core tip,

and spring means adapted to return the pins to their normal position, and means for axially moving the core and core-tip removing means relative to one another.

5. In a core-tip removing machine, a clamp adapted to hold the core and consisting of an upperand lower part, a hinge connecting the said. parts on one side, an eccentric on the other side pivoted on the lower part, a lug secured to the upper part, a spring adapted to force the lug into engagement with the eccentric, an eccentric handle adapted to actuate the eccentric and force the lug downwardly, a removing member adapted to engage the core tip and movable axially of the core, and means for actuating said removing member to and from the core.

6. In a core-tip removing machine, 'a clamp adapted to hold the core, a removing member adapted to engage the core tip and movable axially of the core, means for gaging the position of the core and core tip relative to the removing means, and means positioned at a fixed distance from the clamp and movable into and out of a position for engagement by the end of the core tip for actuating said removing member to and from the core.

7. In a core-tip removing machine, a

' clamp adapted to hold the core, a removing member adapted to engage the core tip and movable axially of the core, means for ac tuating the removing member to and from the core, means for gaging'the position of the core and core tip relative to the removing'means, said gaging means being normally in a withdrawn position,-and means actuated by the removing member in its retracted position to force the gaging means into operative position.

8. In a core-tip removing machine, a clamp adapted to hold the core, a removing member adapted to engage the core tip and movable axially of the core, means for actuating the removing member to and from the core, a bar for gaging the position of the core and core tip relative to the removing member, a spring adapted to withdraw the bar from operative position, and an arm connected with the bar and pivoted to the frame'of the machine, said arm being adapted to be actuated by the removing member'in the course of its motion away fromthe core to force the bar into operative position.

9. In a core-tip removing machine, a clamp adapted to hold the core, a removing member movable axially of the core and comprising an inner and an outer ring, said inner ring being stationary and said outer ring being rotatable, pins slidably mounted in the inner ring, each pin being adapted to project into the center of the ring and engage behind the rim of the core tip, eccen-,

trio recesses in the outer ring adapted toreceive the heads of the pins, springs adapted to force the said pins into the said recesses, a handle for rotating the outer ring, and means for actuating said removing member to and from the core.

10. In a core-tip removing machine, a clamp adaptedto hold the core, a removing member adapted to engage the core tip and movable axially of the core, means for actuating said removing member to and fromthe core, means for gaging the position of the core and core tip relative to the removing means, means whereby the gaging means is brought into a Withdrawn position when the removing member is in its operative position and into operative position when l the removing member is in its retracted position.

Signed at Fort William, Ont., this 7th day of October, 1925.

ERNEST LARBALESTER. 

